Operating mechanism for sack-tying devices



A. STRONER.

OPERATING MECHANISM FOR SACK TYING DEVICES. I

APPLICATION FI'LED AUG.2, 1919. v 1,335,263. Patented Mar. 30,1920.

2 SHEETS-SHEET I.

i -wuewtoz A. STRONER.

OPERATING MECHANISM ,FOR SACK TYING DEVICES. APPLICATION FILED Aue .2.1919.

1,335,263, Patented Mar.3( ),1920.

2 SHEETS-SHEET 2.

Z0 amoewlioz ANTHONY STRONER, OF FLORENCE, COLORADO.

OPERATTNG MECHANISM FOR SAGK-TYING DEVICES.

Specification 01' Letters Patent.

Patented Mar. 30, 1920.

Application filed August 2, 1919. Serial N0. 314',958.

To all whom it may concern:

Be it known that I, ANTHONY STRONER, a citizen of the United States,residing at Florence, in the county of Fremont and State of Colorado,have invented certain new and useful Improvements in Operatinglvleohanism for Sack-Tying Devices, of which the following isaspecification, reference being had to the accompanying drawin 's.

This invention relates to an improved operating mechanism for a sacktying device, in fact for revolvinga spindle, which carries the tyingdevice proper, such as set forth, illustrated and claimed inco-pending-application filed June 21,1919, Serial No. 305,7 97 in thename of Anthony Stroner.

As one of the objects of the invention it is the aim to provide animproved spindle operating mechanism including means whereby a spindlemay be operated intermittently, for a predetermined number ofrevolutions, in order to completely form the tie.

A further object of the invention is to provide means comprisingrevoluble members. approximately of the ratio of three to one foroperating the spindle, in combination with means for automaticallystopping one'of said members at the end of each com plete revolution, sothat when the spindle has completed itsv plurality of pre-determinedrevolutions, the tie will be completed.

A further object of the invention is to provide an operating mechanism'of this kind for actuating the spindle several-complete revolutions, incombination with means whereby the spindle may be stopped positively atthe same point.

A further object of the invention is to provide anabutment lock for oneofthe revoluble members and an. additional lock adapted to be'actuatedby a clutch operating member, to release said revoluble member, so thatthe spindle may revolve a certain predetermined numbr of revolutionsrelatively to the single revolution of one of the members.

While the design and construction at present illustrated and set forthis deemed preferable, it is obvious that as 'a result of a reduction ofthe invention to a more practical form for commercial purposes, theinvention may be susceptible to changes, and the right to these changesis claimed, provided they are comprehended within the scope of what isclaimed.

The invention comprises further features andcombination of parts, aswill be hereinafter set forth, shown in the drawings and claimed.

In the drawings:

Figure 1 is a View in elevation of the improved spindle operatingmechanism constructed in accordance with the invention.

Fig. 2 is a sectional view on line 22 of Fig. 1.

Fig. 3 is a plan .view.

Fig. 4 is a vertical sectional view longitudinally of Fig. 3 on line4-4.

Referring more especially to the drawings, l designates a shaft, whichis mounted stationary in'suitable bearings 2, and mounted on the shaftis a container 3 having acushioning spring 7, and also mounted upon theshaft to rotate is a plate 5, between which and the container 3,'thecushioning spring 7 is interposed, thereby cushioning the plate 5. Asingle spring 7 is disclosed in the drawings, but it is obvious thatseveral springs may be employed, if desired. The plate 5 is chamberedout, and receives antifrictional ball bearings 6, and moreover thespring 7 is designed to be attached to the plate 5 in any-suitablemanner (not shown).

A sprocket'9 is loosely mounted upon the shaft 1 and is adapted to makeintermittent single revolutions. The sprocket 9 is provid-ed with a hub,which contacts with a ring plate 39, which extends into the chamberedout portion of the plate '5, and bears against the anti-frictional ballbearings 6, so that the sprocket may freely rotate relatively to theplate 5, and in such a manner that the friction will reducesubstantially to a minimum. A set collar 10 is fixed to the shaft 1, bymeans of a set screw 11. The sprocket 9 contacts with the set collar 10,and it is to be noted that when the container 3, the spring 7 and theplate 5, and also the sprocket 9 are arranged on the shaft, the sprocketis positioned so as to put the spring 7 severely under tension, so thatit may constitute acushion for the plate 5 and the sprocket. The setcollar is then secured to the shaft 1, to hold the spring 7 undertension. The set collar 10 is also designed to hold the sprocket in auniform position between the container and the collar.

Secured concentrically to the sprocket,

preferably by rivets 9 though not necessarily, for other means may beemployed, are concentrically arranged opposite rings 12 and 13. Theserings, as shown in Fig. 2, have segmental cutaway portions 14 and 15which are immediately adjacent each other. Where these cut away portions14 and 15 occur, the rings are provided with abutment Shoulders 16 and17. Engaging the cut away portion 15 adjacent the shoulder 17 is anabutment finger 18. This abutment finger is secured upon a rod 19, whichis mounted slightly loosely in a bearing 20, which may be secured to anysuitable stationary support as shown at 21. The rod 19 has a collar 21near one end, and a nut 22 threaded on the opposite end. Engaging theopposite sides of the bearing 20 and in surrounding relation to the rod19 between the collar 21 and the nut 22 are coil springs 23 and 24,which permit the rod 19 to yield in either direction axially. Theabutment finger is threaded upon the rod 19, there being a lock nut 25to hold the abutment finger in place. A second abutment finger 26 isthreaded upon a second rod 27 and is secured in place by means of thelock nut 28, this abutment finger 26 being designed to cooperate andengage with the abutment shoulder 16, to hold the sprocket 9 againstrevoluble movement in one direction, while the abutment finger 18engaging the shoulder 17 prevents movements of the sprocket 9 in theopposite direction. The rod 27 is mounted in a bearing 29, which may besecured to any suitable support, as shown at 30. The rod 27 is providedwith a collar 31 and a nut 32, arranged in surrounding relation on therod 27 and engaging between the collar 31 and the nut 32 and arranged onthe opposite sides of the bearing 29 are coil springs 33. These springsact to bear against the collar and the nut and coiiperate with thebearing so as to hold the rod in a slidable position, so that when theshoulder '17 is engaged by the abutment finger, there is a cushioningaction.

The ring '13, which is riveted to the sprocket, has a beveled frictionsurface 34, and loosely and slidably mounted upon the shaft 1 is apulley 36, which is hollowed out, as shown, and its flange is providedwith an enlarged rim or-ring having a beveled friction clutch surface37, which engages frictionally with the beveled clutch surface 34, whenthe pulley 36 is moved toward the sprocket9, so that the sprocket 9 willoperate with the pulley as one body. The collar 10 also acts to preventthe sprocket 9 from following the male clutch member 37, whendisengaging the female clutch surface 34. The pulley 36 continuouslyrotates, since it is driven by means of the belt (not shown), and whenits male clutch member is in engagement with the female clutch member,

the pulley, sprocket and the rings 12 and 13 all rotate together. A coilspring- 38 is interposed between the ring 10, which is adjacent the setcollar 10, and the end wall of the pulley 36, thereby holding the maleclutch'of the pulley out of engagement with the female clutch. This coilspring 38 surrounds one end of the hub 36 of the pulley, thereby actingto maintain the spring 38 concentrically positioned. A collar 40 ismounted upon theshaft 1 and carriesball bearings 41 and is positionedadjacent one end of the sleeve of the clutch member .36. A lever 42 ispivotally mounted at 43 upon a stationary support 44, and this levercomprises three arms 45, 46 and 47. A pedally operated rod 48 isconnected to the arm 46 of the lever 42 so that the lever may rock uponits pivot. The arm 47 is provided with forks which straddle the shaft 1,and the terminals of the forks are spherically shaped and engage thecollar 40 as illustrated. The arm 45 of the lever 42 terminates in forks49, which straddle the rod 27 at a point adjacent the abutment finger26. The abutment fingers 18 and 26 are provided with rollers 50, so asto engage the surface of the opposite rings'l2 and 13. A sprocket chainengages the teeth of the sprocket 9 between the rings 12 and 13. Thissprocket chain also passes about a sprocket 51 of a counter spindleshaft 52, which is mounted in bearings 53. The end of the spindle shaftis threaded into the head'54 of the sack tying device 55, which issimilar to that illustrated in the copending application heretoforementioned.

The relative ratio between the sprockets 9 and 51 is substantially threeto one, and when it is desired to impart several revolutions to thespindle counter shaft 52, the pedally operated rod 48 is actuated, whichin turn oscillates the lever. 42.: The forks of the arm 47 will bearagainst the collar 40 and move the pulley and its clutch mem-. beraxially toward the sprocket 9, causing the friction clutch beveledsurfaces 34 and 37 to engage. Prior to this action of the lever 42 thesprocket 9 is held locked, owing to the coiiperative connections betweenthe shoulders 16 and 17 with the abutment fin gers 18 and 26. However,at the time of operating the lever 42 and moving the clutch member 36,the forks 49 act to tilt the rod in its bearing 29 sufliciently toremove the abutment finger 26 from the path of the shoulder 16. Theabutment finger 26 will remove from the path of the shoulder 16substantially at the same time that the cooperative engagement of thebeveled surfaces 34 and 37 occurs, and since the pulley 36 is rotatingcontinuously, movement will be imparted to the sprocket 9. However, thesprocket 9 will only rotate a full revolution, in which case theabutment shoulders will cooperate with the abutment fingers to stop thesprocket 9 at the end of its complete revolution. The sprocket 51 willoperate three revolutions to one revolution of the sprocket 9, hence tothe spindle will be imparted three revolutions, suflicient to make acomplete tie of the sack. When operating the mechanism, it is the aim torelease the pull upon the lever 42 just immediately before the shoulderscooperate with the abutment fingers, so that the lever 42 will restoreto initial position in time to permit the fingers to cooperate with saidshoulders. As soon as the tension on the lever 42 is relieved somewhat,the spring 38 will act to separate the clutch member 36 from engagementwith the beveled clutch surface 34: of the sprocket 9. The ring 12constitutes a positive stop, owing to its shoulder cooperating with thefinger 18, and is designed to take up the recoil.

The invention having been set forth, what is claimed as new and usefulis:.

1. In a spindle operating mechanism, the combination with a stationarymember and a driven member, of a friction clutch carried by thestationary member and having abutment shoulders and provided with gearconnections with the driven member, abutment fingers yieldably mountedfor cooperating with said shoulders to lock the friction clutch, apedally operated element for dis engaging one of the fingers to releasethe friction clutch and a second friction clutch operative by thepedally operated element to move it into cooperative engagement with thefirst friction clutch, whereby the first friction clutch may rotate withthe second friction clutch for actuating the driven member.

2. In a spindle operating mechanism, the combination with a stationarymember and a driven member, of a friction clutch carried by thestationary member and having gear connections with the driven member,said friction clutch having abutmentshoulders, abutment fingersyieldably mounted for cooperating with said shoulder to lock the clutch,a pedally operated element for dis engaging one of the fingers torelease the clutch, a constantly rotating friction clutch rotatable andslidable on the stationary member and operated by the pedally operatedelement to move it into cooperative engagement with the first frictionclutch, whereby the first friction clutch may operate the driven member,and means for governing the position of the second friction clutchrelatively to the first friction clutch.

3. In a device of the kind set forth, the combination with a supportingshaft, of an element revoluble thereon and having operative connectionswith a member to be driven, a friction clutch part carried by saidelement and provided with abutments, cushioning devices mounted forcooperation with said abutments to lock the friction clutch, a shiftablefriction clutch rotatably mounted upon said shaft and having a pulleypart adapted to be driven, and pedally operated means to actuate thesecond clutch toward and in contact with the first clutch and havingmeans to engage one of the fingers to release the first friction clutch.

4. In a clutch and stop mechanism, the combination with male and femalefriction clutches, of a supporting shaft on which said clutches arerotatable, means to prevent axial movement of the female frictionclutch, the male friction clutch being slidable axially on said shaft,means on the shaft between the two friction clutches to hold the maleclutch normally out of en- ANTHONY STRONER. Witnesses A. L. JEFFREY, J.W. BROWN. I Q

